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Active acidity may be defined as the acidity develops due to hydrogen (H+) and aluminium (Al)3+ ions concentration of the soil solution.
Nobita can row from a point A against a current for 30 minutes and then come back in favour of the current for the next 30 minutes and comes to the poin...
Find the total distance covered by boat in each upstream and downstream in 6 hours if the speed of boat in still water and speed of current is 18 km/h a...
The speed of a boat in still water is 40 km/hr. If the boat covers 360 km in upstream in 12 hours, then find the time taken by the boat to travel 150 km...
When travelling downstream, a boat takes 5 hours to travel 240 km. If the speed of the stream is (5/8)th of downstream speed of the boat, the...
Speed of a boat in still water is 6 times more than the speed of stream. If boat covers 112 km in downstream in 8 hours, then find the time taken by the...
A person rows 300 km against the current in 5 hours and travels 540 km along the current in 6 hours. How much time will he take to row 660 km in still w...
A boat goes 60 km upstream in 4 hours and 50 km downstream in 2 hours, then the speed of the boat in still water is
A man can go on a motorboat with a speed of 18 km/hour in still water to a certain upstream point and return to the starting point in a river that flows...
The speed of the boat in still water is 10 km/hr and the speed of the stream is 5 km/hr. A boat goes 75 km downstream with its usual speed but at the ti...
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 8:6:2, respectively. If ...
